Let P¡ and P, be the populations (in hundreds) of Town 1 and Town 2, respectively. The table below shows data for these two populations for five different years. Year 1980 1983 1985 1989 1993 56 62 68 74 80 P2 83 78 73 68 63 Find the average rate of change of each population over each of the time intervals below. (a) From 1980 to 1985, the average rate of change of the population of Town 1 was hundred people per yea and the average rate of change of the population of Town 2 was hundred people per year.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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